Pamphlet-covering machine



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llllHnJU PAMPHLBT covERING MACHINE.

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Bqs. LEWIS. PAMPHLBT GUYBEINGMAGHINE. y

Patented Dc; 24, '1895. v

N b l\` E# INVENTOR (MMM-e1.)

VNo. 551,776.

' 11 sheets-sheen 4.

.me Model.)

B. sv.-L'EW1S.

PAMPHLBT GOVBRING MACHINE.'

Patented De'c. 24

umm mbk WITNESSS (.No Model.) Y 11 sheets- Sheen 5f y B. s. LEWIS.vPAM-PHLBT GOVBRING MACHINE.

- INVENTOR WITNESISES 11 Sheets-Sheet 6.

B. S. LEWIS PAMPHLET GOVERING MACHINE.

Patented Deo. 24, 189

INVENTOR (No Model.)

`(No Model.)

11 Sheet-Sheet 7. 1B, s. LEWIS. PAMPHLBT GG/VERING MACHINE.

N6. 551,776. Patented Dec. 24; 1895.

, "B. s, LEWIS.

' PAMPHLET GOVERING MACHINE.

,A WITNESSES (.No Modl.) f A Y 11 sheets-sheet 11.

" f B; S. LEWIS. f

PAMPHLBT GOVERING MACHINE.

Patented Dec. 24, 189%5.

WlTNEssEs INVENTOR UNiTED STATES '-ATENT Fries.

BENNETT Lewis, or HAVEN, CONNECTICUT.

PAMPH LETj-.C'OVERI NG MAC-H l N E.

SPECIFICATION formingpart of Letters Patent' No. 551,776, dated December24, 1895. Application ned rebmy 23, 1895. serial No. 539.361. ce maar#To all whom t may concern.-

Be it known that I, 'BENNETT LEWIS, a citizen of the United States,residing at N ew llaven, in the county of .New Haven and State ofConnecticut, have invented certain new and useful Improvements inMachines for Attaching Paper Covers tov Books; and I do hereby declarethe following to be a f ull, clear, .and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention has for its object to provide a machine for attaching papercovers to books which shall be capable of adjustment to adapt it to allsizes and styles of books and which shall be perfectly automatic inoperation. A W ith these ends in 'View l have devised the novel machineof .which the following description, in connection with the accompanyingdrawings, isaspeciication, numbers and let# ters being used to designatethe several parts. Figure l is a side elevation of the machine complete3'V Fig. 1., a detail sectional View on the, line e e in Fig. 1; Fig. 2,a plan view; 2 5 Fig. 2a, a Idetail view illustrating the constructionand operation of the pusher which removes -thebooks from'the chains;Fig. 3, a section on the Vline Jv .t in Fig. Ll, locking'tolWardtheleft, the point of view being opposite to that in Fig.V l, the fablebeing in the position at which the upward movement connncnces;

Fig. 4, an end elevation as seen lrom the left in Fig. 1, thebook-holder being removed; Fig. 5, a section on the line ly/ g/ in Fig.l,

the book-carrying chains and the frames therefor being removed and oneoi.' inc shafts being in section, thc horizontal plane of said Viewbeing at the lino .2f in. l-`igs; l sind il; 4o Fig. 7,.a section onvthe line s .5' in Figs. 1 and 3, looking down; Fig. 8, a section on thcline `u u in Figs. 1 and 3, looking down; see also same line in Fig. 19;Fig. 8, a detail view of the cam and levers which operate thereceiving-platform and the movable squcezcr-plate; Fig. 8b, a detailperspective illustrating` the construction and opera-tion of the pusherwhich moves the books forward outof the way on the receiving-table; Fig.man cn- 5o\lar'ged View illustrating the mechanism for raisinggthecover-table, the position ol? the parts corresponding with Figs. 1.endl?, the

looking toward the right; Fig. U', n plan vicw,

table being at the lowered position and at the extreme of its movementtoward the frontc., just before the upward movement cominences; Fig. 10,a section on the line r o in Fig. 9, lookingA down; Fig. 10, a sectionon the line 0 o in Fig. 7), looking toward the right; Fig. 1l, a sectionon the line w w in Fig. 10, looking up; Fig. l2, a. section on the 6oline 7' 7' in Fig. 10, looking up; Fig. 13, a' reverse Viewcorresponding with 11; Fig.- lll, a section on the line n n in 10,loo'king up; Fig. 15, a section on the line m lm in Fig. 17, lookingvtoward the right, the table being at the raised position; Fig.1(5,aplan View of the frame and rollers upon which the' co verst-ablerests; Fig. 1.7, an end View correspending with Fig. 1.5, looking towardthe V left; Fig. 18, a plan View of the cover-table 7o detached; Fig.19, a section on the line p p in Fig. 8, illustratingl the clutch on themain shaft which connects and'disconnects the operating mechanism; Fig.20, an inverted plan view of the book-carrying chains and the framestherefor detached. Figs. 21 and 22 are respectively an enlarged planview and a side elevation illustrating the construction of thebook-carrying chains; and

Figs. 23 and 2l are sections on an enl. rged 8o scale on the line n. 'n'in Figs. 8 and l0, Fig. 23 showing' the position of the friction, wheeland slices while the standard, frameplatform, table, dac., are movingdownward, the friction-wheel being held against backward movement by oneof the shoes, the other shoe being inoperative, and said figure alsoshowing in dotted lines the position of the' part-sat ihc beginning ofthe downward Inovenient as io illustrate in connection with 9o Figs. 9`and 25 the manner in which the standard is raised slightlyrcla-iivelyto the slide in the case during cach downward movement,l andFig. l showing a positionof the frictionwheel -and shoes while thestandard, frame, platform, table, die., are movingnpward, the shoe whichheld the friction-wheel against backward movement during the downwardmovement of `the parts now slipping' over tire surface of thefriction-wheel, but the other roo shoeholding the friction-wheel againstbackward movement; and Fi g. is a View showing the position of the partswhen the sta-nd ard, fra-me, platform, table, 83e. have reaehcds theextreme of the upward movement and the downward movement is about tocommence, this figure in connection with Figs. 9 and 23 illustrating themanner in which the frictionwheel is causedV to move forward slightly during each downward movement of the standard, frame, platform, table,&c., so that the table is held back suiiiciently at-eaeh downwardmovement, or more correctly is raised relatively to the other parts tocompensate for the thickness of the cover removed while the table was atthe raised position.

It should. be noted that Figs. 1 to 14, in# elusive, and Figs. 16 to 22,inclusive, all showthe parts in the saine position-hat is, a position inwhich the table is at the lowered positionand at the extreme of itsmovement toward the front, the upward movement being about to commence.In Figs. 1 and 3 the llowered position ofthe table at the other extremeof its longitudinal movement is indicated by dotted lines. ln Fig. thetable is shown at the extreme of its upward movement, anotherlongitudinalmovement of the table and platform wholly independent of anymovement of the standard and frame being indicated by a dotted positionof the parts. rlhe position of parts in Fig. 23 is substantially thesame as in Figs. 9 and 14, the

space between the inoperative shoe andthe friction-wheel being greatlyexaggerated so as to indicate clearly the position the parts occupyduring the downward movement. It should be noted furthermorethatwherever the terms rear and front are used they refer respectively tothe feeding end and to the delivering end of the machine. Butasingleoperator is required to run the machine. This operator stands at thefront or feeding end of the lnachine--thatis, the leftas seen inv Figs.1 and 2 and the right as seen in Fig.

1 denotes framework which may be of any ordinary or preferredconstruction and 2th@ main shaft journaled therein. Power is ap- J pliedto drive the machine by a belt (not shown) ruiming over a belt-pulley 3which is rigidly secured to shaft 2. This shaft also has rigidly securedtoit a sprocket-wheel 4 and a collar 5 in whicha clutch-lever 6 ispivoted. (See Fig. 1li.)

7 denotes a sleeve which is journ'a-Icd on the main shaft and hasrigidly secured thereto a pinion 8 and is provided with a head l) whichlies in a socket 1() in collar 5.

11 denotes a conc on shaft 2 which is sccured thereto by means of a rib1,2, but is' free to slide longitudinally thereon. This cone iscontrolled by a yoke 13. The yoke partially incloses the cone in theusual manner, leaving the lat-tc'r lfreel to rotate within the arms ofthe' yoke. rlhis `voke has formed integral with it or rigidly securedthereto an arm 14 provided with a sleeve 15 wh ich is free to slide on ashaft 1.6 above the driving-shaft.

17 denotes a link one end of whiehis connected to arm 1l, the otherbeing pivoted to a hand-levcr .18 which is itself pivotcd be-l tweenlugs ll) extending from any suitable portion of the framework. (SeeFigs. 2 and 7.) It is obvious that movement of they cone to-4 wardtheleft as it appears -in .F ig. 19 will force the`end of-clutch-lcvcrb' that is in engagemen'i therewith outward. It will be noticed'in- Fig.19 that the other end of clutchlever (3 extends inward, as at 20, so asto engage head 9 on sleeve 7. then the cone is moved toward the left,therefore, as it appears in Fig. 19, the clutchlever is caused to engagehead t) with a frictional contact andcommu nicate the motion of shaft2to sleeve 7. Pinion .Q on this sleeve meshes with two gears 21 and 22carried respectively by shafts 23 and 24.. (See Fig. 19 in connectionwith Fig. 8.) These shafts are journaledbelow the main portion of theframework, as indicated in Figs. l and 3.

' 25 denotes a hand-wheel ,on shaft 1G, by which the machine may beoperated should it be desired to move the r.parts without ap plicationof power.' Shaft 23 carries a bevelgea'r26 and two cams designatedrespectively as 27 and 28. Cam 27 by means ofl ntermc diate connectionspresently to be .les ribcd in full imparts longitudinal reciprocatorymovement to the cover-carrying table.

Cam 28, by means of intermediate connections presently to be describedimparts longitudinal reci-procatory movement to the cover-setting slidewhich carries a roller that presses the cover against the back of thebook. -This coversetting slide also serves as an ejector, as willy beexplained. Shaft24 carries a series of cams designated respectively as2S), 30, 31, 32, 33, 3i and 35. These cams are numberedin regularl orderon the shaft as they appearin IOO Fig. Slwithout regard to the order inwhich their operation will be described. Cam 29 (see Figs. l and 2)operates a pusher which moves the book forward a short distance after ithas passed'the carrying-chains and into position to be operated upon byav pusher which moves the book down into position to be op erated uponby the cover-setting roller and at the same time folding the cover tothe sides of thc book. Cam 30 operates apusher which forces the bookbetween the carrying-chains. Cam 31 operates the pusher which places thebook in position to be operated uponby the cover-setting roller andfolds the cover tothe sides. Cam 32by'1n`eans of intermediate connecting mechanism presently to be describedy Cam 33 acts to l raises thecover-setting table.

raise the stop which holds the covers upon the covf'n-carrying table.the table which supports't-he book for an instant after it passes fromthe chains and also operates the squcczer-plate which holdsthe Cam 3loperates book while the cover is being set to the back` l of the book bythe cover-setting roller, and cam 35 operates a pusher which moves thecovered books out of the way after they have been ejected and pressesthem forward on the book-receiving table.

Turning now to Figs. 1, 2, 3, and (l, 3C dey byva short shaft .54.

notes a table at the front of the machine upon which the books 'to becovered are placed, (so far as my present invention is concerned thebooks, which I have indicated by D, may be fed in any ordinary orpreferred mannen) and 37 a vertical plate rigidly bolted to the tableagainst which the side of the book to be; immediately operated uponrests, the back of the book resting upon the table. Upon 4the outersideof plate 37 (see Figs. l and 2) are brackets 38, in which a rod 39reciprocates. This vrod carries a block 40, which is adjustably securedthereto by means of a set-screw lil or in any suitable manner.' 'lhisblock carries the pusher 42, which may be a sliding plate if preferred,although in the present instance I have shown two rods which passthrough slots #i3 in plate 37 and act to push the lbooks forward. Therod, block, and pusher are reciprocated by means of cam 30 in connectionwith a rod il, one end. oi' which is pivoted'to rod 39, the other boingpivoted to a lever Li5 journaled on'a cross-rod i6, which extendsbetween portions of the framework.

' This lever carries a roller 4.7, (see Fig. 8, also dotted lines, Fig.3,) which engages a groove inthe inner face of cam 30, so that eachrotation of the mainshaft and cam will produce a forward and backwardmovement of the pusher and will force a book between thecarrying-chains, the construction and operation of which I will nowdescribe.

Turning now to Fig. 8 in connection with Figs. 2, G, and 20, 4S denotesa.bcvelgearcarried by a vertical shaft i9 and meshing with bevel-gear 26on shaft 2S. -At the upper end of shaft ai), which is made in two parts,will presently be explained, is a pinion 50 which meshes with anidler-pinion 51, which in turn meshes with a second idlerlpin'io'n 52,the latter meshing with a pinion 53 carried Shaft Lif) passes through across-piece 95 of the framework, by which it is supported, and the upperends of shafts 40 and' 54 are both journaled in hubs 06, which extend.above the chain-carrying frames` 97 denotes bolts wh ichpass throughwashers JS and engage the ends of the shafts, thereby; re-

taining them in place. A denotes the fixed and B the movablechain-carrying frames. These frames each consist essentially of anupperplate, a lower plate 5G, a web 6l by which the upper and lowerplates are connected, and a vertical plate 226, the two vertical platesacting to support the sides of the Vbooks as theyare carried along bythe'chains. 'lheupper end of shaft 49 passes through the fixed frame inwhich it is journaled, andshaft 5l is journaled' in and is carried b'ythe movable frai'ne. Idler-pinions 5l and 52 are carried by a swingingarm 5T, one end of which is pivoted on shaft 49. Idler-pinion 5l isjournaled on a stud 58 extending from said arm, and idler-pinion 52 isIiournaled on a stud 59, which exten/ds from said arm, passes through aslotO in the lower plate of chain-carrying frame B and isheld inposition by a nut G2 which bears' upon the plate. (See Fig. On theopposite end of the belt-carrying frames are studs G3, upon which arejournalcd sprocket-wheels G4. These studs are held in place by nuts 90,which bear upon other hubs 96, which extend above the top plates 55 ofthe chain-carrying frames. Shafts r-iil and 54C both carrysprocket-wheels (55, one of which is clearly shown in Fig. 3, in whichview the chain is removed. I have not deemed it neeessary to illustratethese sprocket-Wheels more in detail for the reason that they areidentical with sprocket-wheels 64, except that they: are fastened teandv are carried by the shafts and act to drive the book-carryingchains, while sprocket-wheels G-i are idlers and merely carry thechains.

C denotes the book-carrying chains, each of which is continuous and theconstruction of which is' shown in detail in Figs. 2l and'22. Thesechains consist essentially of outer linlc s the ends of which arepivoted together, as

at G6, and which carry studs 67 upon which e rollers US are journaled,andA between said outer links intermediate links `U`,i`vhich areseparated by blocks 70, pivots 6V passing through the intermediate linksand through the blocks as welles through the outer links. Theintermediate links areY suitably curved to receive the rollers, asclearly shown in dotted lines in Fig. 2l. This construction provides avery strong chain which will not stretch to any serious extent in use.It will be understood from. Figs. 2 and 6 in connection with Fig. 20that the action of pinions 50, 5l, 52, and 53 and the sprocket-wheels isto carry Athe chains forward in opposite directions, -the movement ofboth chains being inward so that the inner sides of the two chains willmove parallel and in the same direction.

The books, which l have indicated by I), as they are carried forward areclamped between the backs of the outer links of the two chains. Theposition of the books as they are carried forward will be clearlyunderstood. from Fig. i.

W'hen the machine is in use, the rollers travcl upon the webs ol of thechain-carrying frames, as is clearly shown in Fig. 20, in which one ofthe lower plates is broken awa-y. In order that the central portion ofthe chaincarrying frames may be made as narrowand consequently as lightpossible, .consistent with strength, and in order flu-theri'uore to takeup any 'stretch in the chains that may occur from use, i j uovidoadjustable pl aies or slices 7l, (sce Fi 20,) which are adapted to bemoved inward against the backsof the chains so that in use the rollerson the outer sides of the chains-that is, the kiortions of the chainsnot in use-\\'ill alsotravel upon the webs, as is clearly shown in Fig.20. Plates il are carried byheaded studs 72, which are adapted to movein or out in slots 73 in the 'upper and lower plates of frames fr andB,A (see Figs. i and 20,) the studs being locked in vposition afteradjustment by nuts 7i. It will 'be no- IOO ' under side by independentplates 75, which are secured to suitable ledges 'i'ficast integral withthe frames. This construction is siniply for convenience in'assembling,plates 7 5 being shown only-in Figs. land 2().` One end of frame A, theright end as seen in Fig. 1, rests upon a bracket 77 upon'a casting 78,to which it is rigidly bolted, (see Fig. 1 in connection with Fig. 4,)casting 78 itself:` being bolted to the framework. The other end ofi'rame- A rests upon table 36,'to which it likewise bolted. The rightend of frame l, as seen in Fig. 2, rests in suitable ways 79, in whichit may slide freely ior the purpose of adjustment. S0 a bracketextending from casting 78, which carries an adjustingserew S1, saidscrew being held against longitudinal in oveinent in the bracket and the inn er end thereof engaging a stump on Vframe B. The other end offrame li, the left as seen in Fig. 2,1-ests upon table Siti, upon whichit may slide-for the purpose oi adjustment. l'pon the under side of thisframe (see Fig. 2U) is a stump S3 which is engaged by an adjustingserewSi, similar to screw 81, (see Fig. 2,) which is itseli' carried by alnaeket 85 extending from any suitable portion of the framework. Itwillbe understood i'rom Fig. 2 that stump S2, which is engaged by one ofthe adjusting-screws, s upon the upper plate of frame B, and that stumpSii, which is engaged 'by the other adjusting-screw, is upon the lowerplate of frame li. It will of course be understood that rotation ofthese adjusting- 'screws will` move frame l toward4 or from frame A,this adjustment being necessary when books of t diti'ere'nt thicknessfrom those previously acted upon are to be covered. loth of these screwsare provided with handwheels -Sti for convenience in manipulation.

57 (see Fig. 20) is a hand-screw engaging lugs 8S on the under sides offrames A and l5, said hand-screwbein g threaded to engage one of thelugs, but rotating freely in-the other lug without engagement therewith.The ob-A ject of this hand-screw is to lock the two trames to each otherto prevent the possibility: olf the trames springing when subjected tothe severe strain ot' use, it being inn'lerstood that the books areclamped Very ti rmly b v the links of the chains and that there is ofcourse a tendency to spring the frames outward from each other. This iswholly overcome, however, by the use of hand-screw S7, which must ofcourse be operated when frame .li is adjnstcd by means oi screws S1 andSi.

It will be apparent from Fig. 2t) in connection with Figs. land 2 thatthe chain-carry in gframes, and with them the sprocket-wheels andthedriving-gears, may be .readily detached from the framework. ln ord er topro vide ii'ir'the convenient removal ot the chain carrying'framjes lmalte shaft if) in two parts,

which maybe connected by anysnit-able slipjoint-as, forinstance, asindicated at the left in Fig. 20, in which the'lower end of the upperportion oi' shaft 4:9 is shown, said portion of the shai't beingprovided. with a transverse groove 90, which is adapted to receive acorresponding tongue formed at the upper end of the lower portion ofsaid shaft, said lower poition not being yshownin the lrawings, as thespecial inode in which the ,joint is i'orlned is not' of the essence ot'my invention. As the books are carried along by the chains, the backsbeing downward, the back oi' each book passes over a glue-roller ill theunder side of which lies-in a glue-tank 92. This tank is provided withan outer jacket 93, the jacket being filled with water which surroundsthe tank and is kept heated to a high temperature to keep the gl ne inliquid 'form by means of steam admitted through a pipe 91, and with acover '100 having a slot ltll through which the glue-roller pass s.

102 denotes wi per-plates which are adjustably secured to a plate 1053,which is formed integral with o`r rigidly secured to alever 1li-l, thelatter boing pivoted in ings 1,05 on a plate 101i rigidly secured toth(` under side of plate t of belt-carrying franiei\,(sce Figs. f3, o'and 21),) the lugs appearing in Fig. 2t) and the pin designated as ltlby which the lever is pivoted between the lugs appearing in Fig. ti.'llle'i'ree end of: the other arm of.' the lever is slot-ted as at 10S,(see Fig. 15,) and a thu1nbscrew 105i passes through this slot andengages plate 106. A(See Fig. :i in connection with Fig. 20, in whichthe hole `engaged by the screw is shown and is desiginited as 110.) Aspring 111 bears upon the under side of plate ltlt and upon the slottedarm oi' the lever and acts to force the lever t'lownward.and conse#quently to hold the central wiper-plate away i'roni the periphery et'the glue-roller. By turning the lthlimb-screw in either direction as maybe required the centra-l wiper-plate may be adjusted in or outrelatively to the periphery et the glue-roller. 'lhese wiperplatessimplyaet to prevent a large t'pmntity oi glue from being taken up bythe glue-roller ,and lcommunicated to the backs olf theboolos.v

The glue-.roller is 'carrieifl by a shaft 1 l2,which is iournaled inbrackets 111i extending i'roin the i'raine,(sec Figs. 1, Si and (5,) andalso carries a sprocket-wheel114. Motion is eoin -municated to theglue-roller by means of:

a sprot'ikctchain 115, which passes over sprocket-wheel 11i and oversL-n'ocket-wheel -i on shaft 2. 11ol denotes a cross-piece, (sce Figs.1,15 and 7,) having hubs 1.17 in which a shai't 11S carrying a pinion119 is ,joui-nalcfl. This pinion en gages a rack 120 on a rod 1.2i,which is itself supported by and is adaptr'iy to be moved vertically ina boss or enlargel nient 122 on cross-piece 11G, the boss being slottedto receive the pinion as indicated in Fig. 7. Upon the u nder side ofthe gl ue-tank is a boss or enlargiunent 1213 having an open ing toreceive the u'ppcr end oi therod. The

ICO

" glue-tank isl secured to the yrod by a set-screw 3,) which engages therod. Atl

124, (see Fig.

the outer end of shaft ll8is a hand-lever 125 by which it maybe-oscillated- It will be seen that when the glue in the tank becomespartially used up the tank may be raised as much as may be required by aslight movement of the hand-lever, it being of course understood thatthe steamconnection is ilexible so as to permit the glue-tank to beraised and lowered whenever required.

Edenotes the covers for the books which rest upon an adjustable table FfThe construction of this table will be clearly understood from Fig. 18in connection with Figs. 1, 3, 'and 17, it-being understoody that theforward movement-of the table, which will presently be fully explained,is toward the top of the sheet, as seen in Fig. 18, toward the right inFig. 1, towardthe left in Figs. and 15 and forward from the point ofview -in Fig. 17. The table consists of three transverse slidesdesignated respectively by 126,

. Bolts 134 the sides of the pile of sides of flanges 133 and 127 and128 each of lwhich is provided with aA slot 129 extending inward fromone end, the opposite sides of the slides being connected by metalstrips 130, the slides beingmade of either met-a1 or wood, preferably ofwood. Slides 126 and. 128 are .rigidly secured to a longitudinal strip131 and slide 1271's rigidly secured toa longitudinal strip 132 whichalso extends over slides 1 26and 128, these strips being preferably madeof metal. and being provided on their outerA sides with flanges passthrough strips 131 and 132 and through the slots, andthe parts areloekedin position by nuts135 onthe under side. (See Fig. 15, also dottedlines in Fig. 18.)

136 denotes fixed supports lagainst which covers rest and Glongitudinally-adjustable supports against which the sidesand rear endof the pile of covers rest. These adjustable supports consist ofangle-pieces 13T which lie upon the inner plates 13S which are madeintegral Withthe angle-piece or are rigidly secured thereto andl iie on.the outer sides of the ii'a-uges, the supports as a whole being clampedto the flanges by set-screws 139. It vwill be readily understoodtherefore that any desired adjustment o' the table to accommodatedifferent lengths of covers may be obtained by loosening the set-screwsand moving the 'supports G forward or backward as may be required andthat adjustment to anyrequired width `of covers maybe obtained byloosening nuts 135 and moving slides 126 and 128 in' one direction andslide 12T in the opposite direction. This table rests upon a platform146 from which it may be readily detached. The frontend of the platform(see Fig. 15,) is provided with a flange 141 against which the tablerests and by which the lattcr'is held against; forward movement.

At the rear end .o- .Te/platform is a groove Y112 which receives alocking-strip 143. '(See Figs. l, Al5 and 17.) This platform 'may orrollers 150 journaled in a frame `sides of the frame,

motion by means. of gib-screws 152.' gitudiual movement of the table andplatbeing immaterial so far may not be solid. In the drawings (see Fig.6 in connection with Fig. 15) l have shown the platform as consisting ofside and end strips denoted by 148 and one cross-piece de-4 noted by149. The special construction of the platform is however whollyimmaterial.

144 denotes pins which extend from the side of slide 128 and are adaptedto engage notches in the locking-strip, thereby secu ring the table tothe strip, the latter' being held in position by the groove 142 whichreceives it. Upon the under side of the platform are depending fianges145 which are provided in their inner faces with grooves 146 whichreceive gibs 147. This platform rests upon 151. (SeeFig.

V16.) The side strips of the platform rest upon these rollers andl gibs147 bear against the (see Figs.. 1 and .1 7 thereby retaining theplatform against any except longitudinal movement on the rollers. Thegibs may be moved inward to take up lost The lonform on rollers 150 iswhollyr independent of the longitudinal movements of said parts withcross-piece 156, and is for the purpose of providing sutiicicnt'freedomof movement for the table to compensate for any slight diifereneein thetiming of the parts of the machine or may be grasped and held ferrcd to.'Frame 151 rests upon and is rigidly sec ured to a vertically-movablestandard 153 which is provided with a rack 154. This standard paesthrough a case 155 which depends from a cross-piece 156 itself carriedby slides 157 which move on guide-rods 158, the latter being supportedby brackets 159 eX- tending from the framework. (See Figs. 6 and 7 inconnection with Figs. 9 to 1 4, inclusive.) Within the ease and lyin g'close to the standard is a slide 160.

161 denotes a pinion which lies in a recess 162 in slide 160 and isjournaled on astud 1623 carried by said slide. i 161 denotes agear-wheel which is made integral with or rigidly secured to pinion 161and of course turns with it on the stud. Pinion 161 ler'igages rack 151on the standard and is theonl y connection between slide and thestandard.

165 denotes a roller journaled en a stud 1.66 which extends outward fromthe slide, passing through a slot 167 in the side of the case.

(See Fig. 10.) This roller rests upon alever 168 which is raised atregular intervals, thereby raising slide 160 and the standard, table,rbc., as will presently be fully as' the operation of the partsvillustrated in Figs. 9 to lil, inclusive, is concerned -how the upwardmovement is imparted to this slide. The Weight of the parts. Arestingupon lever 168 produces the downward movement as soon as the lever dropsdown.

A slight variations in the position vin which the books lbythe chains,all of which will be again re- IOO III)

explained, it

' slot 178', the purpose of which will presently 169 (see Fig. 10"^)denotes a pinion journaled ona stud 1 70 which extends outward fromslide 160. This pinion meshes with gearwheel 164 and hasformed integralt-herewith or rigidly secured thereto a beveled frictiondisk 171, theside of the case being cut away as at 172, (see Figs. 10 and 11,) so asto permit the gear-wheel and pinion to move up or down freely with theslide.

173 denotes a frictiongwheel, the hub 174 of which is also jonrnaled onstud `170. The inner face ot this friction-wheel is'provided with abeveled recess 175, the shapeof which corresponds with friction-disk 171so tnat when said friction-wheel and friction-disk are locked together,as will presently be described, rotary movement imparted to the.y

friction-wheel will be communicated to pinn ion 169, meshing withgear-wheel 161i, which in turn carries pinion 161 engaging the 'rack onthe standard. `lt will be seen therefore that rotary movement impartedto the' iriction-wheel acts througllthe connections just described toraise the standard and with il the eover-carryin g table, the purpose ofwhich will presently be fully explained, 'this move mentof the standardbeingindependeht oi' the movement produced b v'lever 168,.

in; (See ings. s, e, 10,23, si and 1525),@- notes an arm which isrigidly secured tolthe case and extends forward therefrom. ln Fig. '10this arm is shown as secured to the case by bolts 177; This arm isprovided with a be apparent. The outer end of hub 174 is rc# duced as at179, (see Figs. ll) and 19%) and carries arms 180 and 181, which areadapted to oscillate thereon. '.ihese arms are retained in position onthe hub by a nut 182 engaging a thread at the outer end of the reducedportion.

183 denotes a nut engaging the threaded outer end of stud 170, andbearing against the hub to press the latter inward, thereby forcing thewallof the beveled recess in the friction-wheel against frietion-disk171, which locks the parts-together so that rotary movement imparted tothe frietiolrdisk will, through the pinions and gear-wheel justdescribed, impart a vertical movement to the standard and covencarrryingtable wholly independent of the vertical movement of the standardimparted by lever 108. 1 As -will presently be fully expla ined thisindependent upward movement olf the standard is a movement relativetoslidef160 and takes place during the downward movement oi' the table,piatforln, frameand standard, the object bcing to raise the tablesliglltly higher at each upward movement so as to compensate for thethickness of the cover removed therefrom at the last upward movement,and the purpose yof the simple connection between the' friction-wheeland the disk just described is to provide convenient means for loweringthe standard and cover-carrying table when a new lot of covers is placedupon the table without -removal of parts from the machine or anydisturbance ofthe adjustments, all of which will be" again referred to.

184 denotes an arm extending downward from the ease at right angles toarm 176. 185 denotes a link the ends of which are pivoted respectivelyto arms 181 and 184:, (see Fig. 9,) and which carries a shoe 18hl whichis adapted to engage the periphery of the friction-\vheel. (See Fig. 14in. connection with Figs. 23, 21 and 25.)

187 denotes the pivotal point of the link to arm 181, and 188 denotesthe pivotal point oi' the link to arm 184. A spring' 189 extends fromthe lower end of arm 181 and being" against a pin 190 extending outwardfrom 1f link, the action of this spring being lo hc` the shoe inengagement with the periphery of the friction-wheel. f

191 denotes a link oney end of which is pivoted to arm 1.80, aslat 192,the other end extending outward and being provided with aslot 193,anyvportion of which is adapted to register wi th'fslot 178 in arm 176.191 denotes a bolt adapted to pass Vthrough these slois and providedwith a thu nib-nut 195 by which the link and the arm are lockedtogether, the

bolt constituting a pivot on which the link oscillates at cach upwardand down ward movevment ot' slide 1160, the standard, table, &c.

196 denotes a sho'e which is carried by link 191 and is adapted toengage the periphery` of the frie1ion -wheel. (See Figs. 19 and 11 inconnection with Figs. Q3, :'21 and :25.)

197 denotes a spring extending outward from arm 180, the free end ofwhich bears against a pin198 extendin g outward lrom the link, theaction of this spring being to hold the slice in engagement with-theperipheryot' the friction-wheel, as'will presently -.be fully explained199 indicates a scale on link 191 im the guidance ot the operator inmaking line ad justments of the pivotal. point of link 191 io arm179,'/it heilig obvious that it' th e pivotal point-i. e., bolt 19t-ismoved toward the right the oscillation of the link at each upward anddownward movement of slide l"l (il), the standard, table, itc. will belessened, and if said pivotal point is moved toward theleit theoscillation of said link at each upward and downward movement of slide10U, the standard, table, Line., will be increased, it-he friction-wheelwill have a {slightly-increased forward movement imparted to it, and thestandard, table, dac., will be raised a little more at each movement aswould be neces sary in changing from thinner to thicker covers. Asalready stated, the upward and downward movements Vof slide 190, thestandard, table, d'c'., are produced by movements o1' lever 168, whichis engaged by roller 165, carried by slide 160 in the case. The innerend of this lever is pivoted 011 a cross-piece i209,

isee Figs. 3 and 8,) extending transversely from side to side ol' theframework,- 201 denoting the cap-piece of the bearing and 202 rocatorymovement to the table.

collars by which the lever is held against lateral 'displacement on thecross-piece.v The free end of this lever carries-a roller 2053 whichengages the periphery of cam 32 on shaft 24. The shape of this cam isclearly shown in Fig. 3, vin which it appears in dotted lines. AIt willbe understood that each rotation of this cam produces an oscillation oflever 168 and an even' upward and downward movement of slide 160, thestandard, table, &c., `and that duringA more than one-half oftherotation the lever and parts operating in connection therewith will bestationary at their normal-i. c., the lowered position. In connectionwith this movement it is necessary' to consider the mechanism forimparting longitudinal recipe This move"- ment is produced by cam 27 onshaft in piece 208, which extends across from side to' connection with alever 204 carryin g a roller 205, which engages a groove 27a in said cam'and a rod 206, one end of which is pivoted to the free end of lever204, and the other to the under side of cross-piece 156, as at 207. (SeeFi. 3 in connection with Figs. 7 and 6. rlhe y n b lower end of lever204 is pivoted on a crosssiide of the framework. lt`will be obvious thateach rotation of cam 27 will produce a forward and backward movement ofcrosspiece 156 and the case, standard, table, che., which are carriedthereby. In order to insure, however, that the top cover-lf. c., the

one thathas been attached to the back Vof thebook between thechainsshall not adhere to the cover below it, I lay out groove 27 1 inlcam in sncha manner that 'it will im part to cross-piece 156, thestandard, table, tre., an accelerated movement which commences aninstant after the top cover has become attaehed to the back of the book.By accelerated movement l mean that the cover-carry ing-'table movesforward faster than the book that is being carried by the chains.Simultaneously with the acceleration of the forw'ard movement ofcrossepiece 156, the standard, table, itc., the standard and tablecommence to move downward, so that the actual movement of the table andthe pile of covers thereon is an oblique downward movement,

which is faster than the forward movement of the book that is beingcarried by the chains.

The pile of covcrsis thus dragged forwardV and downward away from thecover which has become attached to the book between the chains while atthe same time angle-pieces 137 will press the attached cover forward,causing it to crinkle slightly, so that all dan.- ger of a second coveradhering to the one attached to the book is wholly prevented.

'lurning now to Fig. 15 in connection withvv Figs. 1 and 3, 209 denotesa stop against which the end of the book strikes as it is carriedforward by the chains. 'lhisstop is held by friction only in. a guide210,v which is rigidly secured to the platform. lt will be obvious thatas `the standard, platform, table, the., are moved upward the stop willbe moved upward with them nntil it comes in contact with lower plate 5Gof chain-carrying frame A. As the rplatform will continue to rise untilthe top cover of the pile 1pon the ,table is raised high enough so thatit will adhere to the back of a book between the chains, itfollows thatthe stop will be pressed downward in the guide untilv it is level withthe top of the pileof covers, .in which position it will move downwardwith the standard, platform, table, &c., after the top cover has becomeattached to the book. Just before the next upward movement of theplatform, table, te., takes place and while the table is at the extremeof its movement toward the frontwzf. e., the left as' the machine isseen in Figs. 1, 2, 7 and 8- the stop is moved upward sufficientdistance so that its upper end will be higher than the top of the' pileof covers and in position to be engaged 'by the front end of the nextbook as it is carried 'along by the chains. This upward. movement of thestop is produced by 021m oo 211.

on shaft 24 in connection with a lever This lever, the shape of which isclearly shown in Fig. 3, is practically a bell-crank le ver and ispi'voted in a yoke 212, which extends toward the front from cross-piece156. (See Fig. 7 in connection with Figs. 1 and 3.) The .forward end ofthe horizontal arm of this 1e- IOO en d of which is attached tocross-piece 156 and f the free end of which presses upon the top oflever 211,. acting to press the upperi.. c., the horizontal-arm of saidlever downward and .to hold extension 214 upward in contactwith cam 33,so that when the operative portion 'of said cam comesi-n contact withthe extension 'it will tilt the lever and raise the stop, the

spring returning the lever to its normal' position as soon as theoperative portion of the cam passes it, the lever being shownlas tiltedand in the act of raising the stop in Fig. 3. In Figs. 1 and 3 theposition of the parts is at the moment the stop has been raised by theengagement of the cam with the extension 214 of lever 2 11., just beforethe upward movement of the standard, table, dac., takes place, and' theposition in Fig. 15 is at the moment the table has been raised to itshighest position, at which instant the top cove r thereon will engagethe back ot a book between the chains, the pile of covers beingdesignated by the letter E and appeari ng in full lines in Figs. 1 and 3and indicated by dotted lines in Fig. 15.

4215 denotes a lstop which is adapted to be Aeingaged by the platform(see Figs. 1, '3 and 15) to limit the backward movement of the platformand table-z'. c., the movement toward IIO IIS

-downward 'from frame 151.

the front. This stop extends upward from a block 2.16 which is carriedby a cross-piece 217 extending transversely from side to' side of theframework and serving` as a bracea'od'for the framework in addition-tobeing a support for the block.

218 (see Figs. l and '1.7) denotes a lever which is pivoted to an arm219 extending One arm of this lever is pivoted to a yoke 220 on theunderside of platform lil), the pivot of this lever to the volte lyingrin a slot, so as to permit oscillation of'the lever. This slottedconnection is indicated in Fig. 15, but is not shown in detail, as it isan obvious mechanical expedient. The free arm of this lever is bentinward atan an V gle,tl1en dowmvard, and then backward, as

' ment takes place (leaving the top cover in cngagement with the rbackof the boohhback to their normal position and before thefnext upwardmovement takes place. This possible forward movement of the table andplatform relatively to the frame is indicated by a dotted position ofthe parts in Fig. 15, the normal position of the frame and platformrelal tire cover-carryingl mechanism.

tively to frame 151 being shown in full lines in said ligure.

I will now describe the operation of the 4en- As .has al ready beenstated, the books are fed to the chains by pusher 12, which is of coursetimed with the other parts of the machine. It will furthermore beunderstood from the Id escription'of the cover-carrying mechanism thatthe table has four movementsJ-that is to say, an upward movement, then aforward movement, then an oblique downward movement, and then a backwardmovement to the startingpoint. In Figs. 1 and 3 the table is shown, at

what I have termed the startiug-point--v that is, at the backwardposition (if. c., toward the front)-and ready to rise. The parts are sotimed that the book is passing over the table while the latter is risinThe forward end of the book first comes in contact with sliding stop20S), which has already been raised through the action of lever 211andcani 33.

This engagement of the. book with the stop centers the book"elat-ivelyto the cover that is to be attached to it, the stop, asalready stated, having been moved above the top of the pile of covers,but being pushed down to the level -of the top of the pile of covers byengagement i with lower plate, 56 of chain-carrying frame A as the tablerises, so that when the top cover comes in contact with the back of thebook the stop will not extend above the top of the pile of covers andwillmot interfere with the remova-l of the .top cover from the pile bythe bool; to which it has been attached.A At the instant the top covercomes in contact with the back of the bool: between thechains the forWard movement ofythe table will commence throu'ghthe action 'of cam 27,lever lllsiand rod 206, which is pivoted to cross-piece 156. The tablenow moves forward with the book between the chains. This movement, whichtakes but an instant, permits the cover to become firmly attached to theback of the book, which has previously passed over the surface of aglue-roller, as has `already been fully explained. An instant later theoblique downward movement of the table with the pi le of covers thereontakes place,anglepieces 137 causing the attached cover'to crinkle islightly, as already explained, so that the top cover is separated fromthe others, and all danger of the adhesion of a second cover to theattached coveris prevented. In order to provide for a possible Variationof'the parts, owing to the manner in which the boch may be grasped b'ythe chainsle'r from anycause whatever, l provide for a forward'movementof the table and the pile of coversthereon independently of the forwardmovement of cross-piece 156, the standard and frame 151. rlhis movementresults from the table, and the platform to which it is attached,resting upon rollers 150 on frame 151. This independent movement of thetable and platform relatively to the` frame may or may not take place.Suppose, however, that cross-piece 156, the standard and the frame areslightly IOO behind the book in the forward movement.

Any slight difference in` timing or any 'slight variation from normal intlie position of the book that may lexist at this moment is fullycompensated for by the freedom of the table and platform tolmove forward'with the book and chains independently of cross-piece 156, the standardand frame 151. This slight movement of the table and platform relatively to the frame will be clearly understood from Fig. 15, in which aforward position of the table and platform relatively to the frame isindicated by dotted lines.`

ment is indicated by dotted lines in Figs. 1 and The position, ofthestandard, frame, platform and tableat the end of the oblique'. downwardmove- The instant the obligue downward l movement of the table ceasesthe backward upward movement of the standard, frame,

platform and table, which is produced through lever 168, the latterbeing oscllated by cam 32. This lever is. engaged by the roller 165carried by slide in case 155. The slide also carries a pinion 161, whichengages a i raclc 'on the standard, this being the only connectionbetween the slide and the standard. linion 161 has formed integral withit,

or rigidly secured thereto, a gear-wheel 164,

which meshes with a pinion 169 journaled on stud 170, which also carriesa friction-disk 171 made integral with or rigidly secured to saidpinion'. Friction-wheel 173is also journaled on said stud and islockedto thisy friction-disk, so' as to turn with it. As thefrictionwheelis at all times locked against backward movement, the spacebetweenshoe 196l and the peripheryl of the friction-wheel beingl greatlyexaggerated, so as to show clearly that shoe V196 does not hold duringthe upward movement, the holding of Athe friction-wheel against backwardmovement during the upward movement of the slide, standard and partscarried thereby being wholly performed by shoe 186, link 191, whichcarries shoe 196, being free to oscillate on bolt 194, which serves asits pivot. Fig. 9shows the position of the parts at the moment theupward movement commences, and Fig. 25 shows the position of the partsat. the end of the upward movement,-link'19l shifting during, the upwardmovement from ,the .position shown in Eig. 9 to that shown inFig. 25.The parts remain in the position shown inFig. 25 during the forwardmovement of cross-piece 15G, the case, standard,l frame, platform andtable, and are conseqently in this position when the downward movementcommences, the parts shifting during the downward movement from theposition shown in Fig. 25 back to that shown in Fig. 9, Fig. 23showinglthe positionl of the shoes while this movement is taking place.The normal action of springs 189 and 197 is to lhold shoes 186 and 196respectively in contactwith the periphery of the frictionwheel. Therelative position of arms 180 and 131 and links 185 and 191 is greatlyexaggerated in Figs. 9 and 25. This exaggeration' is "for the purpose ofmaking the action of the 'with relation to shoe '196 from Fig.

partsclear. As a matter of fact the springs merely act to hold the shoesin contact with the periphery of the friction-wheel; but the lockingaction is automatic, as will be apparent, with relation to shoe 18o'from Fig. 2l and It will be seen from Fig. 2-1 that the engagingl pointof shoe 186 is beyond the point of intersection with the periphery ofthe frictionwheel of a line passing through the centers of stud 170 andpivotal point 188 of link A185, which carries the shoe, and from Fig. 23that the engaging-point of shoe 196 is beyond the point of intersectionwith the periphery of the friction-wheel of a line passing through vthecenters of stud 170 and bolt 1.9i, forming the pivot of link 191, whichcarries the shoe. During the upward movement therefore'the pivotal point194 of link 191 being stationary and the friction-wheel moving upward itfollows that the locking action of shoe 196 will be relieved, and it isclearly apparent that any tendeneyofthe friction-wheel toward backwardmovement will be lockedvby'shoe 186, spring 189 ractingat allgtimestohold said Shoe in contact with the peripheryof thefriction-wheel,,andytendencytoward back- Ward movemetei thfrc'tingvheel saisine' said shoeto'fat4 automatieallyto eheckihe movement.' .When'ftheldownward movementtakes place, however, the conditions change. The position of the partsat the instant the downward movement commences is clearly shown in Fig.25 and by dotted lines in',Fig. 23. The instant that the downwardmovement commences any tendency toward backward movement ofthvelkfriction-wheel willlbeautomatically cheeked by shoe 196,saidshoebeing, as already stated, retainedin contact with-the periphery ofthe friction-wheel by. spring 197, it having been deemed best, asalready stated in Figs. 23 and 24, to indicate a clear spaceiietweenshoes 186 and196respectively andthe friction-wheel in order to makeclear the operation of the parts. It will be understood furthermore,owing to the fact that the engagingpoint of shoe 196 with the peripheryof the friction-wheel is beyondthe point.vv ofv intersection with theperipheryof the .frictionwheel of a linepassingr through the centers ofstud 170 and boltxlil, .that in order y togpe'rmit the parts to'changefrom ithe. position shown in Fig. 25 Aand in dotted lines in Fig. 23 tothe positionv shown in Fig. v9 and substantially that in fullzlines inFig. 23 it will be necessary for the friction-wheel to turn slightly onstud 170, on which it is journaled. This movement will be readilyunderstood from Fig. 23, the position in dotted lines be- .in g theposition at the beginning ofthe downward movementalnd the position infull lines being the position at the end of the downward movement. Itshould fnrthermorebe bonne in mind that the bolt 194, which serves as apivot for link 191 carrying shoe 196, is fixed and neither moves up nordown. Now

as the engaging portion of shoev196 holds the friction-wheel at acertain point in its periphery, which I have indica-ted by 221, and asit is impossible for this point to slip under the shoe it follows thatunless the friction-wheel turns forward on Iits axisthedownwardmovenient would be blocked.` Owing rtotheaet, however, thatthe; friction-wheel can turnierward on Vits axis the downward-movementtakes place freely, but during the downward movement suliicie'ntrotation of the frictionwheel on its axis must take place to permit saidfriction-wheel to move from the position ICO shown in dotted lines inFig. 23 tov the position shown in full lines in said figure. Turning nowto Fig. 10, itwill be seen that this movement of the friction-wheel willcanrypinion 169 meshing with Agear-wheely 164, land the latter beingfixed to pinios'nllk which engages the rack, that therack,must,receiveaslight

